<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <title>vue基础：第一个vue页面</title>
    </head>
    <body>

        <!-- el的作用范围 -->
        <div id="app">
            {{message}}
            
        </div>
        <!-- 开发环境版本，包含了有帮助的命令行警告 -->
        <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script> 
        <script>
            var app = new Vue({
                el:"#app",
                data:{
                    //message: "Hello Vue!"
                    //message: "你好，小黑！"
                    message: "黑马程序员！ 好"
                }
            })
        </script>
    </body>
</html>